CN110830331B - Physical model test process data transmission system and method - Google Patents
Physical model test process data transmission system and method Download PDFInfo
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Abstract
The invention discloses a data transmission system and a method in a physical model test process, wherein the system comprises the following steps: the system comprises a plurality of measurement modules, a field control server, a data visualization platform, a database server, a data switch and a remote data backup server; the data exchanger is used for establishing a tera-level optical fiber data communication local area network; the field control server is connected with the data visualization platform through the local area network in a two-way communication way, and is connected with the database server in a one-way communication way, and the database server is connected with the remote data backup server in a one-way communication way, so that the remote data backup is performed by the remote data backup server. In order to ensure real-time effective transmission of a large amount of data, a tera-level optical fiber data transmission local area network is established, and all data are interacted and transmitted through a data switch provided with a tera-level data transmission interface.
Description
Technical Field
The invention relates to the technical field of data information, in particular to a data transmission system and method in a physical model test process.
Background
The suspended tunnel SFT (Submerged Floating Tunnel) is a large-scale cross-sea traffic structure which is constructed and suspended in water, is a great traffic engineering for realizing the crossing of a deep sea fjord in the future by a human being after a cross-sea bridge and a submarine tunnel, is an important mode for solving the great traffic engineering such as the crossing of the fjord, a deep sea channel and the like in the future, and has important strategic significance for leading the future traffic development of China. The engineering technology research of the suspension tunnel utilizes a plurality of means such as mathematical models, physical models, theoretical analysis, design evaluation and the like to develop a series of special researches such as hydrodynamic force and structure, an anchoring system, a connecting structure, engineering materials, a construction method, equipment and the like related to the suspension tunnel, and is intended to form a plurality of breakthroughs in engineering theory, key technology, construction equipment and the like. These innovations will lead and promote the progress of China in various subjects and fields of hydrodynamics, fluid-solid coupling, structural geotechnical, engineering materials and the like, and will provide important technological support for the construction of the traffic-strengthening country.
Because the environment where the suspension tunnel is located is complex, a three-dimensional physical model test corresponding to the suspension tunnel (fig. 1 shows a schematic diagram of a part of a model structure of the three-dimensional physical model test which is established at present and aims at the suspension tunnel) can involve collection of a plurality of physical quantities and real-time transmission, storage and sharing of a large amount of data; in addition, how to perform corresponding suspension tunnel test modeling analysis according to the collected data is completed by cooperation of a plurality of units, so that data transmission and sharing among multiple parties are necessarily involved, researchers which can stay on test sites are limited, and remote transmission of a large amount of data is often involved; therefore, how to ensure that the test data is complete and no data loss occurs, and ensuring the confidentiality of the data in the transmission process becomes an urgent problem to be solved.
Disclosure of Invention
It is an object of the present invention to provide a system and method for data transmission during physical model testing, which overcomes the problems of the prior art.
In order to achieve the above object, the present invention adopts a technical scheme including the following aspects. A physical model test process data transmission system, the system comprising:
the system comprises a plurality of measurement modules, a field control server, a data visualization platform, a database server, a data switch and a remote data backup server; the data exchanger is used for establishing a tera-level optical fiber data communication local area network; the field control server is connected with the data visualization platform in a two-way communication way through the local area network and is connected with the database server in a one-way communication way, and the database server is connected with the remote data backup server in a one-way communication way;
the field control server is used for carrying out clock calibration on the plurality of measurement modules before sending acquisition instructions to the plurality of measurement modules so as to synchronize clock values of the plurality of measurement modules; the method comprises the steps of receiving working condition data of a plurality of measuring modules, sending an acquisition instruction to the plurality of measuring modules, enabling the plurality of measuring modules to start to acquire the working condition data, synchronously transmitting the acquired working condition data to the field control server, and sending a closing instruction to the plurality of measuring modules after the test of the same day is finished; and is used for synchronously transmitting all the received working condition data to the database server and carrying out data storage, data transmission or data deletion on the database server; synchronously transmitting all the received working condition data to the data visualization platform and receiving feedback control of the data visualization platform;
The data visualization platform is used for carrying out statistical analysis on the received working condition data, displaying the received working condition data in real time and carrying out feedback control on the field control server according to the statistical analysis result; the database server is used for receiving and storing the working condition data, encrypting the received working condition data by a data encryption algorithm based on the control of the field control server after the test of the same day is finished, and transmitting the encrypted working condition data to the remote data backup server in a one-way and remote mode, so that the plurality of remote data backup servers can receive the working condition data and perform remote data backup.
Preferably, the database server includes: the first database server and the second database server; the field control server is in one-way communication connection with the first database server through the local area network, the first database server is in one-way communication connection with the second database server through the local area network, and the second database server is in one-way communication connection with the remote data backup server through the local area network;
The first database server is used for receiving the working condition data transmitted by the field control server and storing the working condition data; after the test of the same day is finished, the stored working condition data are unidirectionally transmitted to the second database server through the data switch under the control of the field control server; the second database server can unidirectionally transmit the received working condition data to the remote data backup server after receiving the working condition data from the first database server.
Preferably, the first database server comprises a temporary database and a formal database, wherein the temporary database is used for receiving working condition data which are unidirectionally transmitted by the field control server through the data switch in real time; starting or stopping unidirectional transmission of the received working condition data to the formal database based on a data storage instruction of the field control server;
the formal database can store the working condition data transmitted from the temporary database, and can delete the stored data based on the data deleting instruction of the field control server.
Preferably, the system further comprises a remote monitoring database server which is connected with the data visualization platform in a one-way communication manner, wherein the data visualization platform can transmit the received working condition data to the remote monitoring database server while receiving the working condition data from the field control server so as to share the received working condition data in real time.
Preferably, the plurality of measurement modules include: the system comprises an attitude measurement module, an acceleration measurement module, a cable force measurement module, a strain measurement module, an axial length elongation measurement module, a camera measurement module, a flow velocity measurement module and a wave measurement module;
the attitude measurement module comprises an attitude measurement master controller and a plurality of attitude measurement sensors; the attitude measurement master controller is used for carrying out clock calibration on the plurality of attitude measurement sensors based on a clock calibration instruction of the field control server; the plurality of gesture measurement sensors are controlled to simultaneously start to collect data based on the collection instruction of the field control server, and the data collected by the plurality of gesture measurement sensors are synchronously transmitted to the database server; and simultaneously turning off the plurality of attitude measurement sensors based on a turn-off instruction of the field control server;
the acceleration measuring module comprises an acceleration measuring total controller and a plurality of acceleration measuring sensors; the acceleration measurement master controller is used for carrying out clock calibration on the acceleration measurement sensors based on a clock calibration instruction of the field control server; the acceleration measuring sensors are controlled to simultaneously start to collect data based on the collection instruction of the field control server, and the data collected by the acceleration measuring sensors are synchronously transmitted to the database server; and simultaneously turning off the plurality of acceleration measurement sensors based on a turn-off instruction of the field control server;
The cable force measurement module comprises a cable force measurement total controller and a plurality of cable force measurement sensors; the cable force measurement master controller is used for carrying out clock calibration on the plurality of cable force measurement sensors based on a clock calibration instruction of the field control server; the cable force measuring sensors are controlled to simultaneously start to collect data based on the collection instruction of the field control server, and the data collected by the cable force measuring sensors are synchronously transmitted to the database server; and simultaneously closing the plurality of cable force measurement sensors based on a closing instruction of the field control server;
the strain measurement module comprises a strain measurement master controller and a plurality of strain measurement sensors; the strain measurement master controller is used for carrying out clock calibration on the strain measurement sensors based on a clock calibration instruction of the field control server; the strain measurement sensors are controlled to simultaneously start to collect data based on the collection instruction of the field control server, and the data collected by the strain measurement sensors are synchronously transmitted to the database server; and simultaneously turning off the plurality of strain measurement sensors based on a turn-off instruction of the field control server;
The shaft length elongation measurement module comprises a shaft length elongation measurement total controller and a plurality of shaft length elongation measurement sensors; the shaft length elongation measurement master controller is used for performing clock calibration on the shaft length elongation measurement sensors based on a clock calibration instruction of the field control server; the plurality of shaft length and elongation measuring sensors are controlled to simultaneously start to collect data based on the collection instruction of the field control server, and the data collected by the plurality of shaft length and elongation measuring sensors are synchronously transmitted to the database server; and simultaneously turning off the plurality of shaft length elongation measurement sensors based on a turn-off instruction of the field control server;
the camera measurement module comprises a camera measurement general controller and a plurality of camera measurement sensors; the camera measurement master controller is used for carrying out clock calibration on the plurality of camera measurement sensors based on a clock calibration instruction of the field control server; the plurality of camera measurement sensors are controlled to simultaneously start to collect data based on the collection instruction of the field control server, and the data collected by the plurality of camera measurement sensors are synchronously transmitted to the database server; and simultaneously turning off the plurality of camera measurement sensors based on a turn-off instruction of the field control server;
The flow measurement module comprises a flow measurement overall controller and a plurality of flow measurement sensors; the flow measurement master controller is used for carrying out clock calibration on the flow measurement sensors based on a clock calibration instruction of the field control server; the flow measurement sensors are controlled to simultaneously start to collect data based on the collection instruction of the field control server, and the data collected by the flow measurement sensors are synchronously transmitted to the database server; and simultaneously shutting down the plurality of flow measurement sensors based on a shutdown command of the field control server;
the flow rate measurement module comprises a flow rate measurement overall controller and a plurality of flow rate measurement sensors; the flow rate measurement master controller is used for performing clock calibration on the flow rate measurement sensors based on a clock calibration instruction of the field control server; the flow rate measuring sensors are controlled to simultaneously start to collect data based on the collection instruction of the field control server, and the data collected by the flow rate measuring sensors are synchronously transmitted to the database server; and simultaneously turning off the plurality of flow rate measurement sensors based on a turn-off instruction of the field control server;
The wave measurement module comprises a wave measurement master controller and a plurality of wave measurement sensors; the wave measurement master controller is used for carrying out clock calibration on the wave measurement sensors based on a clock calibration instruction of the field control server; the wave measurement sensors are controlled to simultaneously start to collect data based on the collection instruction of the field control server, and the data collected by the wave measurement sensors are synchronously transmitted to the database server; and simultaneously turning off the plurality of wave measurement sensors based on a turn-off command of the field control server.
Preferably, the attitude measurement master controller, the acceleration measurement master controller, the cable force measurement master controller, the strain measurement master controller, the shaft length elongation measurement master controller, the camera measurement master controller, the flow velocity measurement master controller and the wave measurement master controller are respectively arranged in independent computers.
A physical model test data transmission method, the method comprising: after a test is started, the field control server sends an acquisition instruction to a plurality of measurement modules so that the plurality of measurement modules start to acquire working condition data and synchronously transmit the acquired working condition data to the field control server, and the field control server synchronously transmits all the received working condition data to a temporary database in a first database server and a data visualization platform; the data visualization platform performs statistical analysis on the received working condition data, and performs feedback control on the control server according to the result of the statistical analysis;
In the test process, the field control server monitors the working condition data uploaded by the plurality of measuring modules in real time; error judgment is carried out on the monitored working condition data, and when the monitored working condition data tend to be stable, a storage instruction is sent to a temporary database in the first database server; the temporary database in the first database server starts to synchronously transmit the received working condition data to the formal database in the first database server based on the storage instruction, and the formal first database server stores the working condition data; when the time for storing the working condition data reaches the preset storage time, the field control server sends a storage stopping instruction to the temporary first database server, and the temporary first database server stops transmitting the working condition data to the formal first database server;
after the test of the same day is finished, the field control server controls the formal database in the first database server to transmit the stored working condition data to the second database server, and the second database server encrypts the received data through a data encryption algorithm after receiving the working condition data transmitted from the formal database, and transmits the encrypted data to a plurality of remote data backup servers in a unidirectional and remote mode, so that the plurality of remote data backup servers can share the working condition data.
Preferably, the data encryption algorithm is: DES, MD5 or AES. Preferably, a working condition data preset value is preset in the field control server in advance, and the field control server judges failure test working conditions of the working condition data monitored in the field control server according to the working condition data preset value; when the condition data collected in real time exceeds the preset value of the condition data, judging that the current test is a failure test condition, and sending a data deleting instruction to a formal database in the first database server, wherein the formal database deletes the stored instruction according to the deleting instruction so as to reduce the data storage amount and the data transmission amount to the second database server.
Preferably, the data visualization platform receives the working condition data transmitted by the site control server and transmits the received data to the remote monitoring database server in real time through a data output port of the data visualization platform, so that the remote monitoring database server can share the working condition data in real time.
Preferably, the feedback control includes: when the statistical analysis result shows that the corresponding working condition data exceeds the working condition data preset value, the field control server is controlled in real time to send a data deleting instruction to a formal database in the first database server; and adjusting the preset storage time set in the field control server according to the statistical analysis result of a certain time period, so as to control the data storage amount in the formal database each time.
Preferably, before sending the acquisition instruction to the plurality of measurement modules, the field control server performs clock calibration on the plurality of measurement modules by adopting the Beidou positioning system so as to synchronize clock values of the plurality of measurement modules.
In summary, due to the adoption of the technical scheme, the invention has at least the following beneficial effects: in order to ensure real-time effective transmission of a large amount of data, a tera-level optical fiber data transmission local area network is established, and all data are interacted and transmitted through a data switch provided with a tera-level data transmission interface; in order to ensure that all databases are not interfered with each other during operation, a data transmission mode for carrying out unidirectional data real-time transmission and off-site unidirectional encryption transmission in sequence is established, so that a plurality of units can share corresponding data and locally store the received data, and compared with a cloud data sharing mode, the data transmission mode for unidirectional off-site transmission and local storage further ensures that the data is not leaked while ensuring that the data transmission is safe, reliable and not lost; and a corresponding remote visual terminal is arranged to perform real-time data interaction with the remote visual terminal, the remote visual terminal performs statistical analysis on the received data, an engineer can monitor the site in real time at any time through the corresponding remote visual terminal, and feedback control is performed on the site according to a corresponding statistical analysis result.
Setting corresponding storage triggering conditions in the field control server, and triggering the database server to store data when the monitored data stability reaches the standard, so as to filter invalid data in a starting stage; and setting a corresponding judging condition of the failure condition test in the control server, and when the judging condition is judged to be the failure condition test, controlling the database server to delete the stored data so as to further filter the validity of the data in the test process, thereby reducing the burden of the database, avoiding excessive storage of the test data and reducing the data transmission quantity of the database server.
By carrying out clock calibration on a plurality of measurement modules in advance, synchronous data acquisition of various physical quantity measurement systems in a three-dimensional physical model test of the suspension tunnel is realized, so that the synchronism of test data is ensured, the internal relation between the physical quantities at the same moment can be reflected by the measured physical quantity data, and the analysis of the behavior rule of the suspension tunnel structure is facilitated.
The measurement master controllers of the measurement modules are respectively arranged in independent computers so as to ensure that the different measurement modules work independently and no collected data conflict or interference occurs.
Drawings
Fig. 1 is a diagram of a three-dimensional model architecture of a suspended tunnel according to an exemplary embodiment of the present invention.
Fig. 2 is a schematic diagram of a physical model test procedure synchronization system structure according to an exemplary embodiment of the present invention.
And (5) appendage marking: 1-flowmeter, 3-cable, 4-wave height instrument (a), 6-cable tension meter, 8-flow rate instrument, 9 (a) -camera, 9 (b) -light, 10-displacement posture tester, 11-accelerometer, 12-model pipeline, 13-steel core, 14-water injection pipe, 15-tripod, 16-strain.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, so that the objects, technical solutions and advantages of the present invention will become more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
Fig. 2 illustrates a physical model test data transmission system according to an exemplary embodiment of the present invention. The system of this embodiment mainly includes: the system comprises a plurality of measurement modules, a field control server, a data visualization platform, a database server (comprising a first database server and a second database server), a data switch and a remote data backup server; the data exchanger is used for establishing a tera-level optical fiber data communication local area network; the field control server is connected with the data visualization platform in a two-way communication way through the local area network, and is connected with the database server in a one-way communication way, and the database server is connected with the remote data backup server in a one-way communication way. Wherein the database servers comprise a first database server and a second database server (also referred to as a permanent database server), the first database server comprising a temporary database and a formal database. The three-dimensional physical model test of the suspension tunnel relates to extremely large data quantity of transmission, and a data transmission system is established for ensuring the safety and reliability of data transmission. In the hardware, in order to ensure that different measurement modules work independently and do not generate collected data conflict and interference, each measurement module is provided with corresponding special measurement control software and is arranged on a special independent computer (measurement master controller); in order to ensure real-time effective transmission of a large amount of data, a tera-level optical fiber data transmission local area network is established, and all data are interacted and transmitted through a data switch provided with a tera-level data transmission interface; in order to ensure that all databases are not interfered with each other during operation, independent special high-performance servers are arranged for different databases (temporary databases, formal databases and permanent databases); in order to facilitate field testers to check test conditions, a video output matrix is provided, 9 high-definition display screens (data visualization platforms) are arranged in a test control room, and different test monitoring data are displayed in a classified mode; the special VPN unidirectional data output device is provided, so that test data can be conveniently backed up to different places through the Internet, video streams can be displayed on the test sites, and unidirectional transmission ensures that the test sites are not easy to be attacked by the network.
Specifically, the data transmission method adopted by the invention comprises the following steps: after a test is started (corresponding test equipment is intelligently started to start the test), the field control server sends acquisition instructions to the measurement modules so that the measurement modules start to acquire working condition data and synchronously transmit the acquired working condition data to the field control server, and the field control server synchronously transmits all the received working condition data to a temporary database in a first database server and a data visualization platform; the data visualization platform performs statistical analysis on the received working condition data, and performs feedback control on the control server according to the result of the statistical analysis;
in the test process, the field control server monitors the working condition data uploaded by the plurality of measuring modules in real time; error judgment is carried out on the monitored working condition data, and when the monitored working condition data tend to be stable, a storage instruction is sent to a temporary database in the first database server; the temporary database in the first database server starts to synchronously transmit the received working condition data to the formal database in the first database server based on the storage instruction, and the formal database stores the working condition data; when the time for storing the working condition data reaches the preset storage time, sending a storage stopping instruction to the temporary database, wherein the temporary database stops transmitting the working condition data to the formal database;
After the test of the same day is finished, the field control server controls the formal database in the first database server to transmit the stored working condition data to the second database server, the second database server encrypts the received data through a data encryption algorithm after receiving the working condition data transmitted from the formal database, and the encrypted data are transmitted to a plurality of remote data backup servers in a one-way mode in different places, so that the remote data backup servers can receive the working condition data and perform remote data backup, and the data are further ensured not to be lost. Accordingly, the data encryption algorithm may be: the method comprises the steps that a field control server performs clock calibration on a plurality of measurement modules by adopting a Beidou positioning system before sending acquisition instructions to the plurality of measurement modules, so as to synchronize clock values of the plurality of measurement modules. The method comprises the steps that a working condition data preset value is preset, and a field control server judges failure test working conditions of working condition data monitored in real time according to the working condition data preset value; when the condition data collected in real time exceeds the preset value of the condition data, judging that the current test is a failure test condition, and sending a data deleting instruction to a formal database in the first database server, wherein the formal database deletes the stored instruction according to the deleting instruction so as to reduce the data storage amount and the data transmission amount to the second database server. The data visualization platform receives the working condition data transmitted by the field control server and simultaneously transmits the received data to the remote monitoring database server through the data output port of the data visualization platform, so that the remote monitoring database server can share the working condition data in real time. When the statistical analysis result of the data visualization platform shows that the corresponding working condition data exceeds the working condition data preset value, an engineer can send a closing instruction to the field control server through the data visualization platform so as to stop the current test, and the field control server is controlled to send a data deleting instruction to a formal database in the first database server through the data visualization platform; and adjusting the preset storage time set in the field control server according to the statistical analysis result of a certain time period, so as to control the data storage amount in the formal database each time.
Example 2
The test equipment used for the corresponding physical model test mainly comprises water pump equipment and wave equipment for simulating three working conditions corresponding to the hydrodynamic test; in a physical model test of a suspension tunnel, target working conditions required to simulate and collect test data mainly comprise: pure flow working condition, pure wave working condition and wave working condition; according to the regularity of waves, the pure wave working conditions are divided into regular wave working conditions and irregular wave working conditions. And simulation, data acquisition and data storage are required to be carried out aiming at each target working condition. A plurality of measurement modules are arranged for a plurality of physical quantities involved in hydrodynamic test of a suspension tunnel, and specifically comprise: attitude measurement module, acceleration measurement module, cable power measurement module, strain measurement module, axial length elongation measurement module and camera measurement module, flow measurement module, wave measurement module etc..
The gesture measurement module comprises a gesture measurement master controller and a plurality of gesture measurement sensors (measurement frames), and the corresponding master controller performs data interaction with an external control server and performs centralized control on the gesture measurement sensors. The concrete installation mode is as follows: the measuring frame with light weight and high rigidity is fixed on the pipe body (two hollow stainless steel pipe brackets with the diameter of 100mm are adopted, reinforcing strips are added on two sides, a stainless steel hoop is adopted at the bottom to hold a pipeline model tightly, thin steel bars are adopted to transversely connect the two brackets, the distance between the root brackets is respectively 100mm and 200 mm), and measuring points are arranged at the top end of the measuring frame. During the test, the measuring point is on water, and the geometric relationship between the measuring point and the pipe body is established. In the test, the posture of the pipe body is mastered by measuring the position of the measuring point on water. (1) The deflection measurement precision is 2mm, and the rotation angle precision is 0.2 seconds; (2) dynamically calibrating in a test site; (3) the total mass of the attitude measurement system should be less than 1/1000 of the total mass of the pipe body. The acceleration measuring module comprises an acceleration measuring total controller and a plurality of acceleration measuring sensors (preferably, a Shenzhen intelligent science and technology limited HWT905 type high-precision 9-axis magnetic field RM3100 with temperature supplementing speed sensor is adopted), and the corresponding total controller performs data interaction with an external control server and performs centralized control on the acceleration measuring sensors. The concrete installation mode is as follows: an acceleration instrument is fixed on the pipe body, and the horizontal translational acceleration, the vertical translational acceleration and the three-way angular acceleration of the pipe body are measured. And calibrating the acceleration instrument by a professional organization at intervals before the test, and providing calibration reports and data. The cable force measurement module comprises a cable force measurement total controller and a plurality of cable force measurement sensors (comprising a cable force meter and a dynamometer), and the corresponding total controller performs data interaction with an external control server and performs centralized control on the plurality of cable force measurement sensors. The concrete installation mode is as follows: and a cable force meter is arranged on the cable for measuring the cable force, and the cable force is measured statically and dynamically. The installation is to calibrate the cable force meter, so that the static measurement precision of the cable force meter reaches +/-1N, and the dynamic measurement precision reaches +/-2N. The load cell should perform: (1) static calibration; (2) the dynamic calibration should not have a rate of change of force less than the actual rate. The static force measurement precision of the dynamometer is within +/-1 percent, and the dynamic force measurement precision is within +/-2 percent. The strain measurement module (a dynamic test analysis module with the model DH 5922D) comprises a strain measurement master controller and a plurality of strain measurement sensors (strain gauges), and the corresponding master controller performs data interaction with an external control server and performs centralized control on the plurality of strain measurement sensors. For strain measurement, strain test points are required to be reasonably arranged, the strain state of the pipe body is captured as much as possible, the strain arrangement meets the requirement of dynamic strain measurement, and reasonable waterproof measures are set to meet the requirement of underwater measurement. And (5) checking the strain condition of the mechanical joint part when the rod core is pulled. Other requirements and strain gauge settings need to be studied. The shaft length elongation measuring module comprises a shaft length elongation measuring total controller and a plurality of shaft length elongation measuring sensors, wherein the corresponding total controller performs data interaction with an external control server and performs centralized control on the shaft length elongation measuring sensors. Corresponding rod core elongation measurement: the measurement is performed with a dial gauge. Two sets of endpoints at two sides of the suspension tunnel model are respectively provided with four sets. Errors such as deformation of the support and gap closure are removed as much as possible during measurement. The camera measurement module comprises a camera measurement master controller and a plurality of camera measurement sensors, wherein the corresponding master controller performs data interaction with an external control server and performs centralized control on the plurality of camera measurement sensors. The two cameras are used for shooting target points, the cameras are arranged at two sides of the pool and are separated from the pipeline by about 5m in vertical distance, and the two cameras can shoot the same target point at the same time. A total of 10 industrial-grade 2000 ten thousand pixel fixed focal length cameras are used for 5 targets. In order to improve the underwater photographing visibility, the water quality of the pool is ensured to be clear, and the underwater photographing distance is shortened if necessary. The outer garment of the shooting part is printed with mesh paper in advance or pasted with mesh paper. Two fixed cameras are arranged in the middle of the jumper, one is seen horizontally and the other is seen vertically. The other two are placed at 1/4 positions. A mobile camera is provided. The flow measurement module comprises a flow measurement overall controller and a plurality of flow measurement sensors (flowmeters); and the corresponding master controller performs data interaction with an external control server and performs centralized control on the plurality of flowmeters. The flow rate measurement module comprises a flow rate measurement total controller and a plurality of flow rate measurement sensors (a flow rate meter, a Vectrino (Xiaoweilong) flow meter manufactured by Norway Tex corporation, which is a high-precision acoustic Doppler point type flow meter for measuring the three-dimensional flow rate of water flow); the corresponding master controller performs data interaction with an external control server and performs centralized control on a plurality of flowmeters; the wave measurement module adopts a wave acquisition instrument independently developed by Tianke court, namely a wave height instrument for short, and the wave height instrument acquisition principle is as follows: the different liquid levels at the wave height test rod can lead to the change of the voltage in the test rod, and the change of the voltage is collected and converted into the change of the liquid level at the wave height test rod, so that the wave value at the wave height test rod is obtained. The wave height measuring device comprises a wave measuring master controller and a plurality of wave measuring sensors (a wave height testing rod and a data acquisition box); and the corresponding master controller performs data interaction with an external control server and performs centralized control on the plurality of wave height meters. The wave height meter consists of two parts, namely hardware and matched software. The core acquisition card of the acquisition instrument (figure 1.2) is 16-bit precision, a USB bus and the highest sampling frequency can reach 330KHz (when 40 channels are provided). The acquisition card adopts an industrial USB2817D module and is provided with 64 paths of analog acquisition channels, the module adopts a USB bus to supply power, and the power supply of the acquisition instrument only supplies power to the sensor.
Further, after a test is started, according to the type of the target working condition to be simulated, the on-site control server sends an intelligent starting instruction to the corresponding test equipment; when corresponding test equipment is started to simulate the target working condition to be simulated, the field control server sends acquisition instructions to the plurality of measurement modules at the same time, so that the plurality of measurement modules start to acquire working condition data and upload the acquired working condition data to the field control server. The field control server synchronously transmits the received working condition data to the database server and monitors the working condition data uploaded by the plurality of measuring modules; when the condition data is monitored to tend to be stable, a storage instruction is sent to a database server; when the time for storing the working condition data reaches the preset storage time, the database server sends a storage stopping instruction and sends an instruction to close the started test equipment; and after all target working conditions to be simulated are simulated and corresponding working condition data storage is completed, judging that the test is finished.
Firstly, before starting test equipment to simulate working conditions, a field control server performs clock calibration on a plurality of measurement modules based on self clock values through a Beidou positioning system before sending acquisition instructions to the plurality of measurement modules.
The corresponding clock calibration process comprises the following steps: the plurality of measurement modules synchronize the clock values of the plurality of measurement sensors based on the clock value of the measurement master controller so as to synchronize the clocks of the plurality of measurement sensors to a first preset order of magnitude; the field control server sequentially carries out clock adjustment on the plurality of measurement modules based on the clock value of the field control server so as to synchronize clocks of the plurality of measurement modules to a second preset order of magnitude through the clock adjustment process; the first preset order of magnitude should be less than or equal to the second preset order of magnitude. After the measuring modules synchronize their clocks, the field control server accesses the measuring modules in turn to obtain the clock values of the corresponding measuring modules, and subtracts the obtained clock values of the measuring modules from the current clock values to obtain the clock adjustment amount; when the clock adjustment amount is positive, a corresponding control instruction is sent to control the measurement module to add the clock adjustment amount on the basis of the clock value; when the clock adjustment quantity is a negative value, a corresponding control instruction is sent to control the measuring module to subtract the clock adjustment quantity on the basis of the clock value, so that the absolute physical time of each measuring module and each measuring sensor in the measuring module is adjusted; and accurately taking the clock value of the measuring module accessed by the field control server and the current clock value of the field control server to a second preset order of magnitude, wherein the clock adjustment amount = the current clock value of the field control server-the clock value of the first measuring module.
The method comprises the steps of determining the clock value of a corresponding measuring module and the current clock value of a field control server, wherein the clock value of the corresponding measuring module and the current clock value of the field control server are accurately valued to a second preset order of magnitude, so that reliable theoretical support can be provided for construction of a suspension tunnel engineering, and a reliable data model can be built only through time synchronization within the corresponding preset order of magnitude. Under the theoretical target, after statistical analysis is carried out on data acquired in the test process and a chart is generated and regular exploration is carried out, the corresponding second preset order of magnitude is found to be not higher than 10 < -6 > s, and the time order of magnitude of the time calibration process in the first measurement module is ensured to be smaller than or equal to the preset order of magnitude of the second time calibration process, namely, the first preset order of magnitude is ensured to be smaller than or equal to the second preset order of magnitude, and the physical time difference of any two types of measurement modules and measurement sensors can be ensured to be lower than 2 multiplied by 10 < -6 > s in the time calibration mode. After the time calibration is finished, the control server sends acquisition instructions to the plurality of measurement modules through the instruction control area, namely synchronously starting the plurality of measurement modules so that the plurality of measurement modules can start data acquisition and transmission.
Taking a pure flow working condition as an example, an intelligent starting instruction is sent to corresponding test equipment (water pump equipment). Because of a certain danger of simultaneously starting all the water pump devices, the intelligent starting instruction for the water pump devices refers to setting a time interval (for example, 30 s) to sequentially start a plurality of water pumps on site. When the water pump equipment starts to discharge water, the measuring modules start to collect corresponding data and transmit the collected working condition data (mainly the working condition data of the water flow meter and the flow velocity meter at the moment) to the field control server, and the field control server synchronously transmits the working condition data to a temporary database in the first database server. The on-site control server monitors working condition data transmitted by the plurality of measuring modules in real time, carries out error judgment on the monitored working condition data, judges that the current target working condition tends to be stable when the error of the monitored working condition data is smaller than a preset value, and sends a storage instruction to the first database server. The accuracy requirements of different target working conditions are different, namely the error accuracy requirements of the target working conditions are different, for example, the flow accuracy is controlled within +/-1% when a single pipe is used in a pure flow working condition, then when the preset flow rate is 0.2m/s, the flow rate measurement error is smaller than 0.002m/s, namely when the flow rate reaches 0.198m/s, the judgment is stable, and a storage instruction is sent. The fixed-point time average flow speed precision is controlled within +/-1 percent; the wave-free working condition is that for regular waves, the wave height precision of each wave is within +/-5% and the cycle precision is controlled within +/-1% relative to the average wave height of 10 waves and the median value of the average cycle; and the average wave height statistics of 10 waves at the continuous twice test time sequence is satisfied; for irregular waves, the effective wave height and the spectrum area are within +/-3 percent (compared with a target spectrum value), and the spectrum peak period of a single-peak spectrum is within +/-2 percent; wave + flow condition, firstly adding flow, after meeting the pure flow condition requirement, reproducing wave to meet the pure wave condition. The corresponding precision requirement is the standard for judging whether the working condition data tend to be stable.
At this time, the first database server starts to transmit the received working condition data to the formal database through the temporary database under the drive of the storage instruction, and the formal database stores the test working condition data so as to reject invalid data in the starting stage in such a way. In addition to data stability judgment, the field control server also judges failure test working conditions; when the field control server monitors that the working condition data from the plurality of measuring modules exceeds the working condition data preset value, judging that the simulation of the current target working condition is a failure test working condition, and sending a closing instruction to corresponding test equipment to stop the test; and sending a data deleting instruction to the first database server, and deleting the stored instruction by the first database server according to the deleting instruction. Thereby ensuring the invalid data in the process of deleting the test by eliminating the invalid data in the starting stageThe true and effective data storage is proved, and the burden of a database is lightened. For setting the preset value of the working condition data, the maximum displacement value of a single displacement monitoring point, such as 2cm (adjusted according to field test), can be set; setting the maximum cable force value of a single vertical cable to 400N; setting the maximum cable force value of a single inclined cable to be 300N; setting the maximum strain value at a single strain measurement point to be 800 μεThe method comprises the steps of carrying out a first treatment on the surface of the The monitoring value of the normal operation observation element of any measuring equipment reaches any index, the test is considered to be in a dangerous state, the test working condition fails, the intelligent judging system sends out an instruction to terminate the test, and meanwhile, the instruction is sent out, and the measured value in the formal database is deleted.
And finally, when the time for storing the working condition data reaches the preset storage time, the field control server sends a storage stopping instruction to the first database server so as to stop the temporary database from transmitting the working condition data to the formal database, and the formal database does not store the working condition data. And further ensuring the test data quantity of various target working conditions through corresponding preset storage time control. For the pure flow working condition, the preset storage time is not less than ten minutes; for the regular wave working condition, the preset storage time is not less than 1 minute; for the irregular wave working condition, the preset storage time is not less than 3 minutes; and for wave working conditions (corresponding test equipment is started in a mode of water first and then wave to simulate working conditions), the preset storage time is not less than ten minutes. And in the whole test process (the whole process of simulating a plurality of target working conditions), the field control server can synchronously transmit the received working condition data to the data visualization platform. Through the corresponding data visualization platform, staff can monitor hydrodynamic force test comprehensively in real time according to the image data of the field camera, understand model response measurement results, conduct statistical analysis on working condition test data acquired by the field sensor, and conduct visual display on the statistical analysis results. In the experimental process, engineers can correct the judging conditions (preset storage time-data quantity judgment, failure judging conditions and the like) in the instruction control area according to the statistical analysis result (the time period can be selected according to the needs) in a period displayed by the remote visual terminal. And when receiving the working condition data transmitted by the field control server, the data output port of the field control server transmits the received data to the remote monitoring database server in real time, so that the remote monitoring database server can share the working condition data in real time, and the data is stored.
Finally, after the test of the same day is finished, the field control server controls the formal database in the first database server to transmit the stored working condition data to the second database server, and the second database server encrypts the received data through a data encryption algorithm after receiving the working condition data transmitted from the formal database, and transmits the encrypted data to a plurality of remote data backup servers in a unidirectional and remote manner, so that the plurality of remote data backup servers can receive the working condition data and perform remote data backup.
Those skilled in the art will appreciate that: all or part of the steps for implementing the above method embodiments may be implemented by hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, where the program, when executed, performs steps including the above method embodiments; and the aforementioned storage medium includes: a removable storage device, a read only memory (ReadOnlyMemory, ROM), a magnetic or optical disk, or other various media capable of storing program code.
The above-described integrated units of the invention, when implemented in the form of software functional units and sold or used as stand-alone products, may also be stored in a computer-readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present invention may be embodied in essence or a part contributing to the prior art in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a removable storage device, a ROM, a magnetic disk, or an optical disk.
The foregoing is a detailed description of specific embodiments of the invention and is not intended to be limiting of the invention. Various alternatives, modifications and improvements will readily occur to those skilled in the relevant art without departing from the spirit and scope of the invention.
Claims (12)
1. A physical model test process data transmission system, the system comprising: the system comprises a plurality of measurement modules, a field control server, a data visualization platform, a database server, a data switch and a remote data backup server; the data exchanger is used for establishing a tera-level optical fiber data communication local area network; the field control server is connected with the data visualization platform in a two-way communication way through the local area network and is connected with the database server in a one-way communication way, and the database server is connected with the remote data backup server in a one-way communication way;
the field control server is used for carrying out clock calibration on the plurality of measurement modules before sending acquisition instructions to the plurality of measurement modules so as to synchronize clock values of the plurality of measurement modules; the method comprises the steps of receiving working condition data of a plurality of measuring modules, sending an acquisition instruction to the plurality of measuring modules, enabling the plurality of measuring modules to start to acquire the working condition data, synchronously transmitting the acquired working condition data to the field control server, and sending a closing instruction to the plurality of measuring modules after the test of the same day is finished; and is used for synchronously transmitting all the received working condition data to the database server and carrying out data storage, data transmission or data deletion on the database server; synchronously transmitting all the received working condition data to the data visualization platform and receiving feedback control of the data visualization platform;
The data visualization platform is used for carrying out statistical analysis on the received working condition data, displaying the received working condition data in real time and carrying out feedback control on the field control server according to the statistical analysis result; the database server is used for receiving and storing the working condition data, encrypting the received working condition data by a data encryption algorithm based on the control of the field control server after the test of the day is finished, and transmitting the encrypted working condition data to the remote data backup server in a one-way and remote mode, so that the plurality of remote data backup servers receive the working condition data and perform remote data backup.
2. The system of claim 1, wherein the database server comprises: a first database server and a second database server; the field control server is in one-way communication connection with the first database server through the local area network, the first database server is in one-way communication connection with the second database server through the local area network, and the second database server is in one-way communication connection with the remote data backup server through the local area network;
The first database server is used for receiving the working condition data transmitted by the field control server and storing the working condition data; after the test of the same day is finished, the stored working condition data are unidirectionally transmitted to the second database server through the data switch under the control of the field control server; and after receiving the working condition data from the first database server, the second database server unidirectionally transmits the received working condition data to the remote data backup server.
3. The system of claim 2, wherein the first database server comprises a temporary database and a formal database, wherein the temporary database is used for receiving working condition data unidirectionally transmitted by the field control server through the data switch in real time; starting or stopping unidirectional transmission of the received working condition data to the formal database based on a data storage instruction of the field control server;
and the formal database stores working condition data transmitted from the temporary database, and deletes the stored data based on a data deleting instruction of the field control server.
4. The system of claim 1, further comprising a offsite monitoring database server in unidirectional communication with the data visualization platform, the data visualization platform transmitting the received operating condition data to the offsite monitoring database server while receiving the operating condition data from the site control server to share the received operating condition data in real time.
5. The system of claim 1, wherein the plurality of measurement modules comprises: the system comprises an attitude measurement module, an acceleration measurement module, a cable force measurement module, a strain measurement module, an axial length elongation measurement module, a camera measurement module, a flow velocity measurement module and a wave measurement module;
the attitude measurement module comprises an attitude measurement master controller and a plurality of attitude measurement sensors; the attitude measurement master controller is used for carrying out clock calibration on the plurality of attitude measurement sensors based on a clock calibration instruction of the field control server; the plurality of gesture measurement sensors are controlled to simultaneously start to collect data based on the collection instruction of the field control server, and the data collected by the plurality of gesture measurement sensors are synchronously transmitted to the database server; and simultaneously turning off the plurality of attitude measurement sensors based on a turn-off instruction of the field control server;
the acceleration measuring module comprises an acceleration measuring total controller and a plurality of acceleration measuring sensors; the acceleration measurement master controller is used for carrying out clock calibration on the acceleration measurement sensors based on a clock calibration instruction of the field control server; the acceleration measuring sensors are controlled to simultaneously start to collect data based on the collection instruction of the field control server, and the data collected by the acceleration measuring sensors are synchronously transmitted to the database server; and simultaneously turning off the plurality of acceleration measurement sensors based on a turn-off instruction of the field control server;
The cable force measurement module comprises a cable force measurement total controller and a plurality of cable force measurement sensors; the cable force measurement master controller is used for carrying out clock calibration on the plurality of cable force measurement sensors based on a clock calibration instruction of the field control server; the cable force measuring sensors are controlled to simultaneously start to collect data based on the collection instruction of the field control server, and the data collected by the cable force measuring sensors are synchronously transmitted to the database server; and simultaneously closing the plurality of cable force measurement sensors based on a closing instruction of the field control server;
the strain measurement module comprises a strain measurement master controller and a plurality of strain measurement sensors; the strain measurement master controller is used for carrying out clock calibration on the strain measurement sensors based on a clock calibration instruction of the field control server; the strain measurement sensors are controlled to simultaneously start to collect data based on the collection instruction of the field control server, and the data collected by the strain measurement sensors are synchronously transmitted to the database server; and simultaneously turning off the plurality of strain measurement sensors based on a turn-off instruction of the field control server;
The shaft length elongation measurement module comprises a shaft length elongation measurement total controller and a plurality of shaft length elongation measurement sensors; the shaft length elongation measurement master controller is used for performing clock calibration on the shaft length elongation measurement sensors based on a clock calibration instruction of the field control server; the plurality of shaft length and elongation measuring sensors are controlled to simultaneously start to collect data based on the collection instruction of the field control server, and the data collected by the plurality of shaft length and elongation measuring sensors are synchronously transmitted to the database server; and simultaneously turning off the plurality of shaft length elongation measurement sensors based on a turn-off instruction of the field control server;
the camera measurement module comprises a camera measurement general controller and a plurality of camera measurement sensors; the camera measurement master controller is used for carrying out clock calibration on the plurality of camera measurement sensors based on a clock calibration instruction of the field control server; the plurality of camera measurement sensors are controlled to simultaneously start to collect data based on the collection instruction of the field control server, and the data collected by the plurality of camera measurement sensors are synchronously transmitted to the database server; and simultaneously turning off the plurality of camera measurement sensors based on a turn-off instruction of the field control server;
The flow measurement module comprises a flow measurement overall controller and a plurality of flow measurement sensors; the flow measurement master controller is used for carrying out clock calibration on the flow measurement sensors based on a clock calibration instruction of the field control server; the flow measurement sensors are controlled to simultaneously start to collect data based on the collection instruction of the field control server, and the data collected by the flow measurement sensors are synchronously transmitted to the database server; and simultaneously shutting down the plurality of flow measurement sensors based on a shutdown command of the field control server;
the flow rate measurement module comprises a flow rate measurement overall controller and a plurality of flow rate measurement sensors; the flow rate measurement master controller is used for performing clock calibration on the flow rate measurement sensors based on a clock calibration instruction of the field control server; the flow rate measuring sensors are controlled to simultaneously start to collect data based on the collection instruction of the field control server, and the data collected by the flow rate measuring sensors are synchronously transmitted to the database server; and simultaneously turning off the plurality of flow rate measurement sensors based on a turn-off instruction of the field control server;
The wave measurement module comprises a wave measurement master controller and a plurality of wave measurement sensors; the wave measurement master controller is used for carrying out clock calibration on the wave measurement sensors based on a clock calibration instruction of the field control server; the wave measurement sensors are controlled to simultaneously start to collect data based on the collection instruction of the field control server, and the data collected by the wave measurement sensors are synchronously transmitted to the database server; and simultaneously turning off the plurality of wave measurement sensors based on a turn-off command of the field control server.
6. The system of claim 5, wherein the attitude measurement master controller, the acceleration measurement master controller, the cable force measurement master controller, the strain measurement master controller, the shaft length elongation measurement master controller, the camera measurement master controller, the flow measurement master controller, and the wave measurement master controller are each disposed in separate computers.
7. A physical model test data transmission method, the method comprising:
after a test is started, the field control server sends an acquisition instruction to a plurality of measurement modules so that the plurality of measurement modules start to acquire working condition data and synchronously transmit the acquired working condition data to the field control server, and the field control server synchronously transmits all the received working condition data to a temporary database in a first database server and a data visualization platform; the data visualization platform performs statistical analysis on the received working condition data, and performs feedback control on the field control server according to the result of the statistical analysis;
In the test process, the field control server monitors the working condition data uploaded by the plurality of measuring modules in real time; error judgment is carried out on the monitored working condition data, and when the monitored working condition data tend to be stable, a storage instruction is sent to a temporary database in the first database server; the temporary database in the first database server starts to synchronously transmit the received working condition data to the formal database in the first database server based on the storage instruction, and the formal database stores the working condition data; when the time for storing the working condition data reaches the preset storage time, the field control server sends a storage stopping instruction to the temporary database, and the temporary database stops transmitting the working condition data to the formal database;
after the test of the same day is finished, the field control server controls the formal database in the first database server to transmit the stored working condition data to the second database server, and the second database server encrypts the received data through a data encryption algorithm after receiving the working condition data transmitted from the formal database, and transmits the encrypted data to a plurality of remote data backup servers in a unidirectional and remote mode, so that the plurality of remote data backup servers share the working condition data.
8. The method of claim 7, wherein the data encryption algorithm is: DES, MD5 or AES.
9. The method according to claim 8, wherein a working condition data preset value is set in the field control server in advance, and failure test working condition judgment is performed on working condition data which is monitored in real time by the field control server according to the working condition data preset value;
when the condition data collected in real time exceeds the preset value of the condition data, judging that the current test is a failure test condition, sending a data deleting instruction to a formal database in a first database server, and deleting the stored data by the formal database according to the data deleting instruction so as to reduce the data storage amount and the data transmission amount to a second database server.
10. The method of claim 7, wherein the data visualization platform, while receiving the operating condition data transmitted by the site control server, transmits the received data to the off-site monitoring database server in real time through a data output port thereof, so that the off-site monitoring database server shares the operating condition data in real time.
11. The method of claim 10, wherein the feedback control comprises: when the statistical analysis result shows that the corresponding working condition data exceeds the working condition data preset value, the field control server is controlled in real time to send a data deleting instruction to a formal database in the first database server; and adjusting the preset storage time set in the field control server according to the statistical analysis result of a certain time period, so as to control the data storage amount in the formal database each time.
12. The method of any one of claims 7-11, wherein the field control server employs the beidou positioning system to clock the plurality of measurement modules to synchronize clock values of the plurality of measurement modules prior to issuing the collection instructions to the plurality of measurement modules.
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